		import java.math.BigDecimal;
		
		public class DecimalDemo
		{
			public static void main(String[] args)
			{
				BigDecimal operand1 = new BigDecimal ("1.0");
				BigDecimal operand2 = new BigDecimal ("0.8");
				BigDecimal result = operand1.subtract(operand2);
				
				System.out.println(result);
			
			}
		} 